JP6201260B2 - Tatami surface folding apparatus and tatami surface folding method for borderless tatami mat manufacturing - Google Patents

Description

  The present invention relates to a tatami surface folding apparatus for manufacturing an edgeless tatami mat. More particularly, the present invention relates to a tatami surface folding apparatus for manufacturing an edgeless tatami mat that can be folded with good finish without causing cracks in a natural tatami mat or an artificially manufactured resin or Japanese paper tatami mat. .

  The demand for borderless tatami mats is increasing, and a large number of borderless tatami mat manufacturing apparatuses are known. In the present applicant as well, as a patent document 1, a leaf spring-like shape perpendicular to the surface of the tatami mat is used to determine a table on which the tatami mat and the tatami floor that have been sewed are placed, and the folding position of the tatami mat table over the entire length of the tatami mat. It has a positioning plate that can be moved up and down, a floor presser that fixes the tatami mat and the tatami floor on the table, and a folding plate that moves up and down while sliding on the outside of the tatami mat, and the folding position is determined by the positioning plate. The tatami mat is folded along the positioning plate that is in contact with the long side of the tatami while sliding the outside of the tatami mat by moving the tatami mat up and down a predetermined number of times. We are proposing an edgeless tatami surface folding machine.

  Also, as shown in Patent Document 2, in order to bend the tatami mat along the long side of the tatami mat at right angles to the texture of the tatami mat table, a table on which the tatami mat can be placed and moved up and down and placed on the table A tatami holding means for preventing movement by pressing the tatami mat, a floor bending machine for bending so that the back side of the tatami floor is convex at the center of the tatami width, a positioning means capable of moving up and down for determining the folding position of the tatami surface, A rim having folding means for folding the upper corner of the tatami mat at the protruding portion of the tatami mat along the side edge of the tatami mat and a means for folding the tatami mat along the lower corner of the long side of the tatami floor when the table is lowered. A tatami mat folding machine is also proposed.

  Also, as shown in Patent Document 3, two melting grooves are formed at intervals suitable for the thickness of the tatami floor by a heating iron in a direction perpendicular to the rush or parallel to the end of the tatami floor, A method for processing an edgeless tatami is proposed by a person other than the present applicant, which is characterized in that it is bent along a melting groove and fixed along a tatami floor before or after cooling completely.

Non-Patent Document 1 is a tatami mat folding machine that the applicant started selling from around January 2006 at the latest, and the machine description “not only puts a line at the folding position but also simply bends the tatami mat on this principle. Can be easily folded and creased even on a thick Ryukyu table. ”“ Without using a motor and air, everything is manual operation, so it is very simple and affordable. It is an inexpensive and manually operated device that explains the product outline.

Japanese Patent No. 4375509 Japanese Patent No. 4604255 JP 2000-73538 A

Far East Industrial Machine Co., Ltd., Tatami Folding Machine “Orihime”, [online], Far Eastern Industrial Machine Co., Ltd., [Searched on December 19, 2013], Internet <URL: http://www.kyokuto-sanki.co .jp / products / pro-413.htm>

  As described above, various proposals have been made for borderless tatami mats, and they are often used as residential tatami mats, and demand is increasing. And the thickness of the edgeless tatami is increasing, and the demand for thin tatami is increasing. The applicant has proposed the devices disclosed in Patent Document 1 and Patent Document 2 described above, but also has a problem to be solved.

  In the apparatus of Patent Document 1, the tatami table whose folding position is determined by the positioning plate is brought into contact with the long side of the tatami while sliding on the outside of the tatami table by moving up and down the number of times the folding plate is set in advance. In the apparatus of Patent Document 2, the upper angle of the tatami of the protruding portion of the tatami table is extended along the side edge of the tatami when the table is lowered. A configuration of bending means for bending was adopted. Therefore, the tatami surface folding apparatus for manufacturing edgeless tatami mats of Patent Document 1 and Patent Document 2 has a drive source and is labor-saving. However, since the cost is high, the manufacturing support of the rimless tatami is always performed. It was also difficult to introduce in small tatami mats that are not.

  Regarding the proposal of Patent Document 3, two melting grooves are formed in a direction perpendicular to the rug of the tatami mat woven with a plastic imitation rush or parallel to the end of the tatami floor and at an interval corresponding to the thickness of the tatami floor by a heating iron. However, since the heating iron does not correspond to the thickness of various tatami floors, it is necessary to prepare heating irons as many as the thickness of the tatami floor to be handled, which is inconvenient. In addition, since the resin in which the rush is melted remains around the molten groove, if the resin is not removed, swelling will occur when the tatami surface is bent by the remaining resin, so the resin remaining around the molten groove Removal was indispensable, and problems remained as work.

  In addition, although the folding is easy to perform before the melting part is completely cooled and is easy to follow the floor, it is described in Patent Document 3 that it is possible to cool even after cooling because a groove is formed. In each part, each imitation rush melts and adheres to each other, so after cooling it becomes hard and difficult to fold, and if it is folded in its hard state, the tatami surface will swell As a result, workers had to finish it in a time-consuming process.

  The device of Non-Patent Document 1 is an inexpensive and small device that bends a tatami table by manual operation. However, when bending a tatami surface using a natural weed grass, a crack may occur in the folding grass at the folding position. In order to fold it more than a right angle in the length direction of the weed grass and to crease it, the fibers of the weed grass were broken and crumpled.

  Therefore, in order to prevent cracking of the weeds, the applicant of the present invention, for the user who uses the device, when bending natural edible grass that is easy to break or an artificial tatami table that is hard and difficult to bend (for example, made of resin or Japanese paper) When purchasing a steam sprayer that is commercially available for home use or business use, when actually folding the tatami surface, one hand operates the folding operation handle, while the other hand is the nozzle of the steam spray device. Fold the tatami table while making it easy to bend so that the spray is sprayed while moving the nozzle to the left and right along the folding line of the tatami table and spraying the steam to prevent cracks in the tatami surface. I was instructed to do the processing.

By using the device of Non-Patent Document 1, the operator can work more efficiently than the manual bending operation using a ruler or the like. It is necessary to move the nozzle in the tatami mat width direction many times in order to swell the portion of the tatami mat surface to bend and to swell the portion of the tatami mat to bend, and the temperature of the tatami mat surface where the steam is sprayed is also necessary. Since it quickly decreases, it takes time and effort for the operator to prevent the occurrence of cracks. The operator must work with care not to cause cracks in the tatami mat, and if the operator meanders the movement of the nozzle, the steam does not hit the part to be bent and the pretreatment is uneven. As a result, there was a part that was not fully prepared. If such unevenness has occurred, when folding the tatami table, there may be problems such as cracking of the weeds and disturbance of the linearity of the folding, which is expected to improve work. It was rare.

  In order to solve the problem, the present invention is a tatami mat folding apparatus for manufacturing a tatami mat without a rim, which sandwiches a tatami mat and folds the tatami mat, and comprises a table on which the tatami mat is placed, a holding plate and a nipping block. Unit, turning center provided near the tip of the tatami surface holding plate, heating control means for heating to a predetermined temperature by providing a heater in at least one of the holding plate and the holding block, and turning guide means for turning the folding unit. When folding the tatami mat, the tatami mat is folded by turning the folding unit while heating both sides of the tatami mat with the heated pressing plate and the holding block.

  In addition, using the above-described tatami surface folding apparatus for manufacturing rimless tatami mats, the front end of the heater block and the pressing plate is heated to a predetermined temperature with a heater, and then the state where the tatami surface is held between the heater block and the pressing plate is maintained. The step of heating the tatami mat, the step of turning the folding unit after the tatami mat is heated, folding the tatami mat 90 degrees, maintaining the folded state, and the process of folding the tatami mat larger after the step of folding 90 degrees By performing the above, the tatami table is folded.

In the case of folding a tatami mat using natural camellia grass, the pretreatment includes a step of damaging the vicinity of the line for folding the tatami mat with water and allowing it to elapse for 5 minutes or more.

  By bending the folding unit while heating both sides of the tatami surface, bending stress is locally applied to a fold line that folds the tatami surface, and the tatami surface can be easily folded and can be folded aesthetically. In particular, in the case of a natural material tatami mat, the grass is warmed and the water starts to evaporate and is also steamed by the steam, so that it is easy to bend and the cracking of the grass can be prevented.

According to the present invention, by turning the folding unit after heating the tatami mat, folding the tatami mat 90 degrees, holding the folded state, and folding the 90 deg. In order to fold the tatami surface, it is possible to provide a processing method with established procedures with an inexpensive machine with manual operation. be able to.

It is a front view of the tatami surface folding apparatus for tatami mats of the present invention. It is a side view of the tatami surface folding apparatus for tatami mats of the present invention. It is a top view of the tatami surface folding apparatus for tatami mats of the present invention. It is principal part explanatory drawing of a bending unit. It is sectional explanatory drawing of the planar view which demonstrates a heater block part. It is explanatory drawing explaining the process of bend | folding a tatami surface with the tatami surface folding apparatus for tatami of this invention. (A) The figure explaining the state which held the tatami table, (b) The figure explaining the state which bent the tatami table 90 degrees, (c) The figure explaining the state which bent the tatami table more than 90 degrees.

  The tatami surface folding apparatus for edgeless tatami according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a tatami mat folding apparatus 1 according to the present invention, FIG. 2 is a side view, and FIG. 3 is a plan view. In appearance, it has the same structure as Non-Patent Document 1 described in the prior art.

  The tatami mat folding apparatus 1 includes a table 2 on which the tatami mat A is placed, a frame 3 positioned below the table 2, and a folding unit 4 that bends the tatami mat A by swiveling between the tatami mat A.

  The table 2 is provided with folding tables 2a, 2b, and 2c. When not in use, the folding tables 2a, 2b, and 2c are folded so that the space can be reduced in plan view.

  Further, turning guide plates 5 are provided on both side ends of the bending unit 4 of the table 2, and the turning unit 4 can be turned around the turning center B (see FIG. 4). A plurality of bearings 5a that can be formed are attached so that their centers have a diameter centered on the turning center B.

  The folding unit 4 is provided with a heater block 7 in a holding block that holds the holding plate 6 and the tatami table, thereby forming the heater block 7. The holding plate 6 can be opened and closed by hinges 9 and 9. As shown in FIG. 4, the holding plate 6 is fixed so that the tip end of the pressing plate 6 is in contact with the heater block 7 as an initial position. A turning center B is provided slightly above the tip of the pressing plate 6.

  In this embodiment, the turning center B is set to a position 1.5 mm above the tip initial position of the presser plate 6 and 1.5 mm toward the handle 8 in order to bend the tatami surface having various thicknesses. The above numerical values are set on the assumption that the thickness of 2 to 3 mm, which is the largest thickness of the tatami mat, is bent well, and the tatami mat is turned so as to bend while slightly pressing the tatami mat with the tip of the pressing plate 6. In the case of a thicker tatami mat, when the folding unit 4 is swung, the tatami mat will sink under the tip of the presser plate 6, and the tatami table will escape to the lower side of the presser plate 6. The tatami surface is not pressed too much by the tip of the pressing plate 6 so that the tatami surface can be bent.

  Of course, it is also possible to adopt a structure in which the position of the turning center B is adjusted in accordance with the thickness of the tatami surface by using the turning guide plate 5 as a position adjustment type with respect to the table. However, if the position of the turning center is adjustable, the mechanism becomes complicated, and it is also troublesome to adjust each time the thickness of the tatami mat changes. Therefore, if the turning center is fixed, the cost of the apparatus itself can be reduced. After turning the bending unit 4, the embodiment is described with a structure with low cost, which is a matter that can be dealt with by setting the dimension between the tip of the pressing plate 6 and the table 2. It goes without saying that the position of the turning center may be adjusted, or an embodiment of the present invention may be used.

  Heaters 7a and 7a are installed inside the heater block 7, and the gap between the heater block 7 and the heaters 7a and 7a is filled with good heat conductivity such that, for example, heat transfer cement or the like is attached when the heater is softly dried and hardened. An agent is added to make it easy for the heat of the heaters 7 a and 7 a to be transferred to the heater block 7. Reference numeral 7b denotes a temperature sensor, which is provided to control the heating temperature of the heater block 7.

  As shown in FIG. 5, two heaters 7a and 7a are arranged in the width direction of the heater block 7 so that the temperature of the heater block 7 can be uniformly controlled. As described with reference to FIG. 4, the front end of the presser plate 6 is in contact with the heater block 7, and the rear end side is in a state where it is not installed in the heater block 7, so that the tatami mat table is in the initial position. When A is folded, it can be folded while being heated on both the front and back surfaces of the tatami mat.

  Swivel guides 10 and 10 are provided on both left and right ends of the heater block 7 via heat insulating materials 7c and 7c, respectively, and swivel grooves 10a and 10a provided in the respective swing guides 10 and 10 (see FIGS. 5 and 6). The plurality of bearings 5a are always fitted to each other, and the bending unit 4 can be turned around the rotation center B.

  The handle 8 is installed on the side of the holding plate 6 that is opened when the tatami mat A is held, and can be turned so as to be in a use state shown in FIG. 6 and a storage state shown in FIGS. ing. Moreover, the clamp 11 is for holding the state where the tatami mat A is held, and is provided on the heater block 7 side. The clamp state shown in FIG. 6 and the clamp open state shown in FIGS. It is provided so that it can turn with a hinge etc. so that it can do. The control box 12 performs on / off of the heater 7a and temperature control.

  The front end of the pressing plate 6 is brought into contact with the tatami mat A, and the folding unit 4 is pivotally moved using the abutted width line as a fold line, and the bending stress is locally applied to the tatami mat A by the folding movement of the folding unit 4. It is configured to bend while heating to the full width direction of the tatami surface to be folded.

  Next, the process of bending the tatami mat A using the tatami mat folding apparatus of the present invention will be described. In order to change the set temperature of the heater 7a depending on the material used for the tatami mat, first, a chemical table using resin and Japanese paper for the tatami mat and folding of the tatami mat called the Japanese paper table will be described.

  As a pre-bending preparation, the heaters 7a and 7a are turned on, and the set temperature is set to 100 to 120 ° C. and heated. In the case of a resin surface, setting the temperature to 130 ° C. or higher may damage the surface of the tatami surface.

  When the heaters 7a and 7a are turned on, the tip of the pressing plate 6 is also heated by the heater block 7 as described with reference to FIG.

  When the heating is sufficiently performed, the tatami mat A is placed on the table 2, the presser plate 6 is raised by the handle 8, and the bent portion of the tatami mat A is set between the presser plate 6 and the heater block 7. After setting, the holding plate 8 is closed with the handle 8, and the folding position is adjusted with the tatami table A held between the holding plate 6 and the heater block 7, and the folding position of the tatami table A is at the tip of the holding plate 6. If they can be matched, the clamp 11 is turned to firmly fix the holding plate 6 and the heater block 7 as shown in FIG. (ST.1)

  With the presser plate 6 and the heater block 7 firmly fixed, the tatami mat A is heated from both sides of the front and back surfaces with the heat of the presser plate 6 and the heater block 7 for 10 to 20 seconds. (ST.2)

  The handle 8 is operated to turn the folding unit 4 so that the tatami mat A is bent by 90 ° as shown in FIG. (ST.3)

  By holding the holding pin 13 provided on the turning guide 10 in the locking groove 14a of the holding metal 14, the tatami table A is held in a state of being bent by 90 °. The bent state is maintained for a holding time of about 5 to 10 seconds. (ST.4) The holding pin 13 in FIG. 6 is shown by the one-dot chain line that is provided in the turning guide 10 on the right side of FIG.

  The holding pin 13 is removed from the locking groove 14a of the holding metal fitting 14, and further bent as shown in FIG. 6 (c). (ST.5)

  At this time, if the clamp 11 comes into contact with the tatami mat A, the tatami mat A will be damaged, so the clamp 11 may be removed and bent. Even if the clamp 11 is removed, a force is applied by the handle 8 in the direction in which the presser plate 6 holds the tatami mat A so that the ST. As described in 3 above, there is no particular influence on the finish of the tatami mat A that is folded 90 degrees.

  ST. 5 folds the tatami mat table A greatly so that it can be folded more securely. If necessary, the holding time may be taken in the state of FIG.

  The handle 8 is operated to return the bending unit 4 to the position where it is bent by 90 °, the presser plate 6 is opened, the tatami mat A is removed, and the bending process is completed.

Next, the folding of the tatami mat using natural camellia will be described.
As a pre-bending preparation, the heaters 7a and 7a are turned on and the set temperature is set to about 120 ° C. and heated. Then, it is left for 5 minutes or longer in a state where the water is sufficiently immersed in the folding line position of the tatami mat A with a brush or the like. In addition, water may be applied to the bucket, and the folding line position of the tatami mat A may be immersed in water so that the tatami mat A is placed in the bucket and held for 5 minutes or more.

  Chemicals such as softeners may be used to prevent the occurrence of cracks in the weeds, but it may lead to discoloration of the tatami mat and it is desirable to pre-treat with water alone.

  When the heaters 7a and 7a are turned on, the tip of the pressing plate 6 is also heated by the heater block 7 as described with reference to FIG.

  When the heating is sufficiently performed, the tatami mat A is placed on the table 2, the presser plate 6 is raised by the handle 8, and the bent portion of the tatami mat A is set between the presser plate 6 and the heater block 7. After setting, the holding plate 8 is closed with the handle 8, and the folding position is adjusted with the tatami table A held between the holding plate 6 and the heater block 7, and the folding position of the tatami table A is at the tip of the holding plate 6. If they can be matched, the clamp 11 is turned to firmly fix the holding plate 6 and the heater block 7 as shown in FIG. (ST.1)

  With the presser plate 6 and the heater block 7 firmly fixed, the tatami mat A is heated from both sides of the front and back surfaces with the heat of the presser plate 6 and the heater block 7 for 10 to 20 seconds. (ST.2)

  At this time, the tip of the holding plate 6 and the heater block 7 warm the folds of the tatami table A containing water, and the water starts to evaporate and is also steamed by the steam. It has become.

  The handle 8 is operated to turn the folding unit 4 so that the tatami mat A is bent by 90 ° as shown in FIG. (ST.3)

  By holding the holding pin 13 provided on the turning guide 10 in the locking groove 14a of the holding metal 14, the tatami table A is held in a state of being bent by 90 °. The bent state is maintained with a holding time of about 10 to 20 seconds. (ST.4) The holding pin 13 in FIG. 6 is shown by the one-dot chain line that is provided in the turning guide 10 on the right side of FIG.

  The holding pin 13 is removed from the locking groove 14a of the holding metal fitting 14, and further bent as shown in FIG. 6 (c). (ST.5)

  At this time, if the clamp 11 comes into contact with the tatami mat A, the tatami mat A will be damaged, so the clamp 11 may be removed and bent. Even if the clamp 11 is removed, a force is applied by the handle 8 in the direction in which the presser plate 6 holds the tatami mat A so that the ST. As described in 3 above, there is no particular influence on the finish of the tatami mat A that is folded 90 degrees.

  ST. 5 folds the tatami mat table A greatly so that it can be folded more securely. If necessary, the holding time may be taken in the state of FIG.

  The handle 8 is operated to return the bending unit 4 to the position where it is bent by 90 °, the presser plate 6 is opened, the tatami mat A is removed, and the bending process is completed.

  In the case of bending natural cocoon grass, in the step of bending 90 ° or further, if the bending speed is bent slower than the resin surface or Japanese paper surface, cracking of cocoon grass can be further prevented. The device of the present invention is based on the width of processing a semi-tatami mat, and when folding a tatami mat with a length of one tatami mat, it is divided into two half-tatami mat lengths and is also compatible with tatami mats. Bend it as you can.

In the above embodiment, if the heater is provided on the cost and pressure plate side, the structure on the pressure plate side becomes large. Therefore, in consideration of ease of operation, the heater is installed only on the heater block side. Although explained, it goes without saying that a heater may also be provided on the holding plate side.

A tatami mat B swivel center 1 tatami mat folding device 2 table 3 frame 4 folding unit 5 swivel guide plate 5a bearing 6 holding plate 7 heater block 7a heater 7b temperature sensor 7c heat insulating material 8 handle 9 hinge 10 swivel guide 11 clamp 12 control box 13 Holding pin 14 Holding bracket 14a Locking groove

Claims (3)

A tatami table folding device for manufacturing an edgeless tatami mat that holds a tatami mat and folds the tatami mat.
A table on which a tatami mat is placed;
A bending unit composed of a holding plate and a holding block;
A turning center provided near the tip of the tatami surface holding plate,
Heating control means for providing a heater to at least one of the holding plate and the holding block and heating to a predetermined temperature;
Turning guide means for turning the bending unit;
A tatami surface folding apparatus for manufacturing an edgeless tatami mat, wherein the tatami surface is folded by turning the folding unit while heating both sides of the tatami surface with a heated holding plate and a holding block when the tatami surface is folded. Using the tatami surface folding apparatus for producing rimless tatami according to claim 1,
After heating the heater block and presser plate tip to a predetermined temperature with a heater,
Holding the state of holding the tatami mat with the heater block and the holding plate, and heating the tatami mat;
A step of turning the folding unit after the tatami mat is heated to fold the tatami mat 90 degrees and holding the folded state;
A method for folding a tatami table of an edgeless tatami mat, wherein the tatami mat is folded by performing a step of folding the tatami mat larger after the step of folding and holding by 90 °. 3. When folding a tatami table using natural camellia grass, the pretreatment includes the step of moistening the vicinity of the line for folding the tatami table with water and allowing 5 minutes or more to pass. How to fold a tatami table.

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